CVE-2023-29059

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

4.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 90.4% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-03-30 00:00Z3 YR AGO

Last updated

2025-05-05 16:01Z1 YR AGO

Reserved

2023-03-30

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

No CWE assigned

Data version

5.1

Document digest

4e5b0a63c4b4bfc24fe47b67efe728885541dd9c834dc93e71f5e05fb90b7b9c

• cwe.mitre.orghttps://cwe.mitre.org/data/definitions/506.html
• www.3cx.comhttps://www.3cx.com/blog/news/desktopapp-security-alert/
• www.fortinet.comhttps://www.fortinet.com/blog/threat-research/3cx-desktop-app-compromised
• www.huntress.comhttps://www.huntress.com/blog/3cx-voip-software-compromise-supply-chain-threats
• www.crowdstrike.comhttps://www.crowdstrike.com/blog/crowdstrike-detects-and-prevents-active-intrusion-campaign-targeting-3cxdesktopapp-customers/
• news.sophos.comhttps://news.sophos.com/en-us/2023/03/29/3cx-dll-sideloading-attack/